Senior Software Engineer, Embedded Systems

4+ years of experience building embedded software for sensors or instrumentation.

Track record of owning the design, implementation, and success of significant components within a larger system.

Comfortable defining technical direction, taking ownership, and delivering in a fast-paced product iteration cycle.

Strong embedded C/C++ on microcontrollers with production Zephyr experience. You are fluent in devicetree, Kconfig, west, and the device driver model.

You have designed filters, tackled sampling and aliasing, and designed and debugged signal chains.

Comfortable with analog: ADCs, gain, references, grounding, and noise.

Testing heavy, pushing for unit tests, hardware mocks, CI, and collecting realistic data.

Experience with optical and electrical sensing and emitters.

Experience productionizing new sensing methodologies, from prototype to deployed product.

Learn about our startup journey: Our Journey

How we're combating climate change: AI-Powered Climate Tech

A customer story: Ben & Jerry's uses H2Ok's precision automation to cut time & water usage

Our Interview Process

Why You'll Love it Here

A front-row seat at Greentown Labs, North America's largest cleantech innovation hub, in a Somerville neighborhood ranked one of the coolest in the world

Real recognition: 2026 World Economic Forum Technology Pioneer, Gold 2026 Edison Award, Unilever Startup of the Year, Innovator Awards by both Coca-Cola and ABInBev, and more

A team that celebrates together from rooftop lunches, ping pong matches, Lunch & Learns, and regular team events

Competitive salary, equity, and a 401(k) with company match

Health, dental, and vision coverage, plus short- and long-term disability and life insurance

Flexible time off and 12 company-paid holidays

A conference and learning budget to keep growing your craft

Greentown Labs membership and a transportation benefit for your commute

Phone screen with Laminar Head of Ops or Recruiter (15-20 minutes)

Intro call with Hiring Manager (30 minutes)

On-site interview, including short tour of GTL, overview of tech, and interview/presentation with the Hiring Manager and a few team members. Depending on the role, a skills exercise that should take no longer than an hour to prep, would be sent ahead of time. We record your skills exercise to share with any team members who could not join the interview and/or with Founder's ahead of their Founder's Interview. If you are not local, we can conduct this virtually.

Finalists for Full-Time positions will have a Founder’s Interview in-person

Final steps:

Two professional references are requested, ideally one from your current organization and one who served as your Manager

If an Offer Letter is extended, a Background check is conducted

A recent study from LinkedIn showed that most women apply to jobs only when they meet 100% of the requirements, whereas men will hit the apply button if they hit 60%. Laminar (formerly H2Ok) is committed to building a diverse and inclusive team. So, to the women and nonbinary folks out there feeling unsure if you're a perfect fit, we strongly encourage you to apply! If you're ready to play a key role in scaling a game-changing company that’s transforming the industrial sector and advancing sustainability, we want to hear from you!

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